linux_dsm_epyc7002/arch
David S. Miller 1f474646fd sparc64: Fix sun4u execute bit check in TSB I-TLB load.
Thanks to testcase and report from Brad Spengler:

--------------------
#include <stdio.h>

typedef int (* _wee)(void);

int main(void)
{
        char buf[8] = { '\x81', '\xc7', '\xe0', '\x08', '\x81', '\xe8',
                        '\x00', '\x00' };
        _wee wee;
        printf("%p\n", &buf);
        wee = (_wee)&buf;
        wee();

        return 0;
}
--------------------

TSB I-tlb load code tries to use andcc to check the _PAGE_EXEC_4U bit,
but that's bit 12 so it gets sign extended all the way up to bit 63
and the test nearly always passes as a result.

Use sethi to fix the bug.

Signed-off-by: David S. Miller <davem@davemloft.net>
2010-02-19 15:19:52 -08:00
..
alpha alpha: cpumask_of_node() should handle -1 as a node 2010-01-14 13:21:35 -05:00
arm OMAP: hsmmc: fix memory leak 2010-02-10 09:20:33 -08:00
avr32 avr32: clean up memory allocation in at32_add_device_mci 2009-12-28 12:33:00 +01:00
blackfin blackfin,kgdb: Do not put PC in gdb_regs into retx. 2010-01-07 11:58:37 -06:00
cris Merge branch 'for-33' of git://repo.or.cz/linux-kbuild 2009-12-17 07:23:42 -08:00
frv FDPIC: Respect PT_GNU_STACK exec protection markings when creating NOMMU stack 2010-01-06 18:16:02 -08:00
h8300 Merge branch 'for-33' of git://repo.or.cz/linux-kbuild 2009-12-17 07:23:42 -08:00
ia64 [IA64] preserve personality flag bits across exec 2010-02-12 08:17:58 -08:00
m32r elf: kill USE_ELF_CORE_DUMP 2009-12-16 07:20:12 -08:00
m68k m68knommu: fix definitions of __pa() and __va() 2010-01-12 20:51:45 -08:00
m68knommu m68knommu: fix invalid flags on coldfire pit clocksource 2010-01-16 12:15:38 -08:00
microblaze microblaze: Invalidate dcache before enabling it 2010-02-08 11:39:18 +01:00
mips MIPS: Don't probe reserved EntryHi bits. 2010-02-10 22:15:46 +01:00
mn10300 mn10300: update the ASB2303 defconfig 2010-01-11 09:34:10 -08:00
parisc parisc: fix tracing of signals 2010-02-12 08:51:58 -08:00
powerpc powerpc: Fix address masking bug in hpte_need_flush() 2010-02-10 13:58:06 +11:00
s390 [S390] Fix struct _lowcore layout. 2010-02-09 09:46:23 +01:00
score mm: make totalhigh_pages unsigned long 2010-01-11 09:34:03 -08:00
sh sh64: fix tracing of signals. 2010-02-15 14:17:45 +09:00
sparc sparc64: Fix sun4u execute bit check in TSB I-TLB load. 2010-02-19 15:19:52 -08:00
um Unrot uml mconsole a bit 2010-01-14 09:05:26 -05:00
x86 x86: ELF_PLAT_INIT() shouldn't worry about TIF_IA32 2010-02-16 08:51:49 -08:00
xtensa Merge branch 'for-33' of git://repo.or.cz/linux-kbuild 2009-12-17 07:23:42 -08:00
.gitignore
Kconfig hw-breakpoints: Fix hardware breakpoints -> perf events dependency 2009-12-18 13:11:51 +01:00